CVE-2025-6393

TOTOLINK A702R/A3002R/A3002RU/EX1200T HTTP POST Request formIPv6Addr buffer overflow

State: Published
Severity: 8.7 High
Published: Jun 21, 2025
Updated: Jun 23, 2025
Reserved: Jun 20, 2025

Description

A vulnerability was found in TOTOLINK A702R, A3002R, A3002RU and EX1200T 3.0.0-B20230809.1615/4.0.0-B20230531.1404/4.0.0-B20230721.1521/4.1.2cu.5232_B20210713. It has been classified as critical. Affected is an unknown function of the file /boafrm/formIPv6Addr of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P	VulDB
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
3.0	8.8 High	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
2.0	9.0 High	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-120 Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
A702RTOTOLINK	3.0.0-B20230809.1615Affected 4.0.0-B20230531.1404Affected 4.0.0-B20230721.1521Affected 4.1.2cu.5232_B20210713Affected
A3002RTOTOLINK	3.0.0-B20230809.1615Affected 4.0.0-B20230531.1404Affected 4.0.0-B20230721.1521Affected 4.1.2cu.5232_B20210713Affected
A3002RUTOTOLINK	3.0.0-B20230809.1615Affected 4.0.0-B20230531.1404Affected 4.0.0-B20230721.1521Affected 4.1.2cu.5232_B20210713Affected
EX1200TTOTOLINK	3.0.0-B20230809.1615Affected 4.0.0-B20230531.1404Affected 4.0.0-B20230721.1521Affected 4.1.2cu.5232_B20210713Affected

References

VDB-313386 | TOTOLINK A702R/A3002R/A3002RU/EX1200T HTTP POST Request formIPv6Addr buffer overflowvdb-entrytechnical-description
VDB-313386 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #597565 | TOTOLINK A3002RU V3.0.0-B20230809.1615 Buffer Overflowthird-party-advisory
Submit #597566 | TOTOLINK A3002R V4.0.0-B20230531.1404 Buffer Overflow (Duplicate)third-party-advisory
Submit #597591 | TOTOLINK A702R V4.0.0-B20230721.1521 Buffer Overflow (Duplicate)third-party-advisory
Submit #597592 | TOTOLINK EX1200T V4.1.2cu.5232_B20210713 Buffer Overflow (Duplicate)third-party-advisory
https://github.com/awindog/cve/blob/main/688/15.mdrelated
https://github.com/awindog/cve/blob/main/688/16.mdexploit
https://www.totolink.net/product

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